Paste.Ubuntu-fr-Secours.org

Dernières Sources | Poster une source

Utilisateur : Jeffreyguani - Posté le : 22/04/2025 - 13h15
Langage : Texte

Lien vers la page en cours : http://paste.ubuntu-fr-secours.org/src-556956
Lien vers une page sans décoration : http://paste.ubuntu-fr-secours.org/plain-556956

Question :
Lunar clockwork
What scientists know for certain is that they need to get precision timekeeping instruments to the moon.
kraken вход
Exactly who pays for lunar clocks, which type of clocks will go, and where they’ll be positioned are all questions that remain up in the air, Gramling said.

“We have to work all of this out,” she said. “I don’t think we know yet. I think it will be an amalgamation of several different things.”
https://kra30c.cc
kraken onion
Atomic clocks, Gramling noted, are great for long-term stability, and crystal oscillators have an advantage for short-term stability.
“You never trust one clock,” Gramling added. “And you never trust two clocks.”

Clocks of various types could be placed inside satellites that orbit the moon or perhaps at the precise locations on the lunar surface that astronauts will one day visit.

As for price, an atomic clock worthy of space travel could cost around a few million dollars, according Gramling, with crystal oscillators coming in substantially cheaper.

But, Patla said, you get what you pay for.

“The very cheap oscillators may be off by milliseconds or even 10s of milliseconds,” he added. “And that is important because for navigation purposes — we need to have the clocks synchronized to 10s of nanoseconds.”

A network of clocks on the moon could work in concert to inform the new lunar time scale, just as atomic clocks do for UTC on Earth.

(There will not, Gramling added, be different time zones on the moon. “There have been conversations about creating different zones, with the answer: ‘No,’” she said. “But that could change in the future.”)

  1. Lunar clockwork
  2. What scientists know for certain is that they need to get precision timekeeping instruments to the moon.
  3. <a href=https://kra30c.cc>kraken вход</a>
  4. Exactly who pays for lunar clocks, which type of clocks will go, and where they’ll be positioned are all questions that remain up in the air, Gramling said.
  5.  
  6. “We have to work all of this out,” she said. “I don’t think we know yet. I think it will be an amalgamation of several different things.”
  7. https://kra30c.cc
  8. kraken onion
  9. Atomic clocks, Gramling noted, are great for long-term stability, and crystal oscillators have an advantage for short-term stability.
  10. “You never trust one clock,” Gramling added. “And you never trust two clocks.”
  11.  
  12. Clocks of various types could be placed inside satellites that orbit the moon or perhaps at the precise locations on the lunar surface that astronauts will one day visit.
  13.  
  14. As for price, an atomic clock worthy of space travel could cost around a few million dollars, according Gramling, with crystal oscillators coming in substantially cheaper.
  15.  
  16. But, Patla said, you get what you pay for.
  17.  
  18. “The very cheap oscillators may be off by milliseconds or even 10s of milliseconds,” he added. “And that is important because for navigation purposes — we need to have the clocks synchronized to 10s of nanoseconds.”
  19.  
  20. A network of clocks on the moon could work in concert to inform the new lunar time scale, just as atomic clocks do for UTC on Earth.
  21.  
  22. (There will not, Gramling added, be different time zones on the moon. “There have been conversations about creating different zones, with the answer: ‘No,’” she said. “But that could change in the future.”)
Source / Log / Texte

Informations


    

- Cet espace vous permet de copier/coller une grande quantité de texte à l'attention d'un interlocuteur.
- Dans le cas d' #ubuntu-fr, il vous permet de coller une grande quantité de texte sur le canal, évitant ainsi d'inonder (flood) les usagers sous une masse d'infos.

- Le champ Utilisateur, est facultatif, mais permet à vos interlocuteurs de s'y retrouver plus facilement.
- Le champ Langage, permet d'utiliser la "colorisation syntaxique". Cela ajoute un confort visuel lors de la lecture. En cas d'omission d'une valeur, "Texte" sera appliqué.
- Le champ Question, permet de rappeler le problème/solution en cours.
- Le champ Source / Log / Texte, est votre espace pour coller votre texte (logs, message d'erreur, fichier de configuration, scripts, etc...)

- Lorsque vous soumettez le formulaire, 2 adresses vous sont retournées.
     Une avec numérotation et coloration syntaxique.
     L'autre nettoyé de tout style.

- Les sources postées ici on une durée de vie relativement brève. Tous les 51ème envois, le premier de la liste est supprimé.
La durée de vie des envois est donc minime, mais cela permet d'éviter un spam massif, tout en conservant une facilité et une liberté d'accès conséquente.